Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-08T07:49:27.875Z Has data issue: false hasContentIssue false
  • English
  • Français

Approximate Methods for Predicting Separation Properties of Laminar Boundary Layers

Published online by Cambridge University Press:  07 June 2016

N. Curle  and
S. W. Skan
N. Curle
Affiliation:
Aerodynamics Division, National Physical Laboratory
S. W. Skan
Affiliation:
Aerodynamics Division, National Physical Laboratory
Get access

Summary

Some new solutions for steady incompressible laminar boundary layer flow, obtained by Gortler, have been used to test the accuracy of two methods which are commonly used to predict separation. A modification of Stratford's criterion for separation is given in this paper and is probably the most accurate and the simplest of all methods at present in use. Modified numerical functions are also given for Thwaites's method of predicting the main characteristics of the boundary layer over the whole surface, which improve the accuracy of the method.

Type
Research Article
Information
Aeronautical Quarterly , Volume 8 , Issue 3 , August 1957 , pp. 257 - 268
Copyright
Copyright © Royal Aeronautical Society. 1957

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Thwaites, B. Approximate Calculation of the Laminar Boundary Layer. The Aero nautical Quarterly, Vol. I, p. 245, November 1949.CrossRefGoogle Scholar
2. Stratford, B. S. Flow in the Laminar Boundary Layer near Separation. R. & M. 3002 (to be published).Google Scholar
3. Falkner, V. M. and Skan, S. W. Some Approximate Solutions of the Boundary Layer Equations. R. & M. 1314, 1930.Google Scholar
4. Howarth, L. On the Solution of the Laminar Boundary Layer Equations. Proc. Roy. Soc. A. 264, p. 542, 1938.Google Scholar
5. Hartree, D. R. A Solution of the Laminar Boundary Layer Equations for Retarded Flow. R. & M. 2426, 1949.Google Scholar
6. Pohlhausen, K. Zur Integration der Differential-gleichung der laminaren Grenzschicht. Zeitschrift fiir angewandte Mathematik mid Mechanik, Vol. I, p. 252, 1921.CrossRefGoogle Scholar
7. Hartree, D. R. The Solution of the Equations of the Laminar Boundary Layer for Schubauer's Observed Pressure Distribution for an Elliptic Cylinder. R. & M. 2427, 1949.Google Scholar
8. Gortler, H. A New Series for the Calculation of Steady Laminar Boundary Layer Flows. Freiburg University Mathematics Institute Report, September 1955.Google Scholar
9. Goldstein, S. On Laminar Boundary Layer Flow near a Position of Separation. Quarterly Journal of Mechanics and Applied Mathematics, Vol. I, p. 43, 1948.CrossRefGoogle Scholar
10. Tani, I. On the Solution of the Laminar Boundary Layer Equations. Journal of the Physical Society of Japan, Vol IV, p. 149, 1949.CrossRefGoogle Scholar
11. Lighthill, M. J. On Boundary Layers and Upstream Influence—I. A Comparison between Subsonic and Supersonic Flows. Proc. Roy Soc. A. 217, p. 344, 1953.Google Scholar